CN219145599U - Embedded steel sheet and speaker - Google Patents
Embedded steel sheet and speaker Download PDFInfo
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- CN219145599U CN219145599U CN202223314998.1U CN202223314998U CN219145599U CN 219145599 U CN219145599 U CN 219145599U CN 202223314998 U CN202223314998 U CN 202223314998U CN 219145599 U CN219145599 U CN 219145599U
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Abstract
The utility model provides an embedded steel sheet and a loudspeaker, wherein the joint of a bending part and a fitting part of the embedded steel sheet is increased by increasing the step difference, so that the space of the joint is increased; when the plastic is injected, the filling space of the plastic at the joint can be increased, the requirement on other production factors during injection is reduced, the combination of the plastic in the finished product and the steel sheet is facilitated, the appearance of the joint is beautified, the requirement on the air tightness of the shell is met more easily, and the poor acoustic performance caused by air leakage of the loudspeaker is improved.
Description
Technical Field
The utility model relates to the technical field of speakers, in particular to an embedded steel sheet and a speaker.
Background
At present, electronic digital products are required to be extremely thin and high in performance, so that the requirements on the thickness and the materials of stacked elements inside the products are also becoming severe. The industry has also explored how to create a larger internal usage space with a limited profile as a speaker module that is one of the product's internal components. Under normal conditions, the thickness and the strength of the material are positively correlated, but the steel sheet has smaller wall thickness under the same strength compared with plastic, so that the adoption of the steel sheet instead of plastic in the loudspeaker structure as a structural shell becomes one way for increasing the internal vibration space of the loudspeaker. However, the acoustic performance of the speaker structure requires that the front and rear cavities must be sealed separately and that "air leakage" is not possible, which presents a challenge for the sealing mode of the steel sheet embedded in the housing.
In the prior art, because the sharp corner space exists in the shape of the bent root of the steel sheet and needs to be filled with plastic, in theory, the sharp corner space needing to be filled with plastic is infinitely close to one side, and the PC+GF (glass fiber is added in polycarbonate) used by common shell materials has the characteristic of poor fluidity during injection molding, so that the sharp corner space is easy to be not fully filled, a serrated edge is formed, and even the risk hidden danger of air leakage exists. If high pressure injection molding is used for forced filling, the requirements on equipment, steel sheet materials, mold materials and runner designs are higher, and the service lives of the equipment and the mold are not facilitated. And there is the tear position between two bends of steel sheet, and the very easy gas leakage that takes place of speaker leads to acoustic performance bad.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: provided are an embedded steel sheet and a speaker, which can improve the air tightness of a speaker shell.
In order to solve the technical problems, the utility model adopts the following technical scheme:
an embedded steel sheet comprises a bending part and a fitting part; the bending part is connected with the end part of the attaching part; the junction of bending portion with laminating portion is provided with the level difference.
Further, the thickness of the joint between the bending part and the attaching part is smaller than the thickness of the bending part or the attaching part, so that the step is formed.
Further, the bending portion comprises a first bending portion and a second bending portion, and the first bending portion and the second bending portion are respectively arranged at two ends of the attaching portion.
Further, the step is a right-angle groove structure.
Further, the bending direction of the first bending part is the same as that of the second bending part.
Further, the bending direction of the first bending part is opposite to that of the second bending part.
Further, the attaching portion and the bending portion are integrally formed.
In order to solve the technical problems, the utility model adopts another technical scheme that:
a loudspeaker comprising a gel and said one embedded steel sheet; the joint part of the embedded steel sheet wrapped with the colloid is provided with a step.
The utility model has the beneficial effects that: the step is increased at the joint of the embedded steel sheet bending part and the attaching part, so that the space of the joint is increased; when the plastic is injected, the filling space of the plastic at the joint can be increased, the requirement on other production factors during injection is reduced, the combination of the plastic in the finished product and the steel sheet is facilitated, the appearance of the joint is beautified, the requirement on the air tightness of the shell is met more easily, and the poor acoustic performance caused by air leakage of the loudspeaker is improved.
Drawings
FIG. 1 is a schematic view of a structure of an embedded steel sheet according to an embodiment of the present utility model;
FIG. 2 is a detailed schematic view of the junction of embedded steel sheets described in the background;
fig. 3 is a top view of a speaker according to an embodiment of the present utility model;
FIG. 4 is a cross-sectional view of a portion A-A of a speaker according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of a portion B-B of a speaker according to an embodiment of the present utility model;
description of the reference numerals:
1. a bending part; 2. a bonding part; 3. a junction; 4. a step difference; 5. a colloid; 6. an embedded steel sheet; 7. a loudspeaker; 11. a first bending part; 12. a second bending part; 71. an outer retaining wall; 72. a housing; 73. monomer retaining wall; 74. a front cavity; 75. front cavity sound outlet pipe.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an embodiment of the present utility model provides an embedded steel sheet, including a bending portion and a bonding portion; the bending part is connected with the end part of the attaching part; the junction of bending portion with laminating portion is provided with the level difference.
From the above description, the beneficial effects of the utility model are as follows: the step is increased at the joint of the embedded steel sheet bending part and the attaching part, so that the space of the joint is increased; when the plastic is injected, the filling space of the plastic at the joint can be increased, the requirement on other production factors during injection is reduced, the combination of the plastic in the finished product and the steel sheet is facilitated, the appearance of the joint is beautified, the requirement on the air tightness of the shell is met more easily, and the poor acoustic performance caused by air leakage of the loudspeaker is improved.
Further, the thickness of the joint between the bending part and the attaching part is smaller than the thickness of the bending part or the attaching part, so that the step is formed.
As can be seen from the above description, the step refers to the deviation of matching between the positions of parting surfaces of two mold inserts or front and rear molds due to the deviation of machining precision; here, this offset structure is realized by the thickness difference between the bent portion and the bonded portion; according to the utility model, the colloid is accommodated in the accommodating space through the accommodating space manufactured by the step difference, so that the colloid can be tightly attached to the steel sheet, and the air tightness is improved.
Further, the bending portion comprises a first bending portion and a second bending portion, and the first bending portion and the second bending portion are respectively arranged at two ends of the attaching portion.
As is apparent from the above description, the bent portion is used to be fixed with the colloid so as to ensure the air tightness of the case to which the steel sheet is attached.
Further, the step is a right-angle groove structure.
As can be seen from the above description, the step difference is shown at the connection between the bending part and the attaching part of the steel sheet, so that the step difference can be set by adopting a right-angle groove mode.
Further, the bending direction of the first bending part is the same as that of the second bending part.
From the above description, the positions of the steel sheets in the shell are different, so that the orientations of the bending parts at the two ends of the steel sheets are different, the fixing of the steel sheets and the shell is ensured, the combined space between the steel sheets and the colloid is increased, and the colloid is convenient to fill.
Further, the bending direction of the first bending part is opposite to that of the second bending part.
From the above description, the positions of the steel sheets in the shell are different, so that the orientations of the bending parts at the two ends of the steel sheets are different, the fixing of the steel sheets and the shell is ensured, the combined space between the steel sheets and the colloid is increased, and the colloid is convenient to fill.
Further, the attaching portion and the bending portion are integrally formed.
From the above description, the attaching portion and the bending portion are integrally connected, so that the attaching portion and the bending portion are stably connected.
Referring to fig. 3, another embodiment of the present utility model provides a speaker, including a gel and the embedded steel sheet; the joint part of the embedded steel sheet wrapped with the colloid is provided with a step.
From the above description, the beneficial effects of the utility model are as follows: the step is increased at the joint of the embedded steel sheet bending part and the attaching part, so that the space of the joint is increased; when the plastic is injected, the filling space of the plastic at the joint can be increased, the requirement on other production factors during injection is reduced, the combination of the plastic in the finished product and the steel sheet is facilitated, the appearance of the joint is beautified, the requirement on the air tightness of the shell is met more easily, and the poor acoustic performance caused by air leakage of the loudspeaker is improved.
The embedded steel sheet and the loudspeaker provided by the utility model can be used in electronic equipment or shell injection molding, so that the shell air tightness is improved, and the poor acoustic performance caused by the air leakage of the loudspeaker is improved, and the following is explained by a specific embodiment:
referring to fig. 1 to 5, a first embodiment of the present utility model is as follows:
an embedded steel sheet comprises a bending part 1 and a fitting part 2; the bending part 1 is connected with the end part of the attaching part 2; the joint 3 of the bending part 1 and the attaching part 2 is provided with a step 4.
It should be noted that, the attaching portion 1 represents a portion where the embedded steel sheet is attached to and fixed to the housing to be injection molded, and the bending portion 2 represents a portion where the embedded steel sheet is far away from the housing to be injection molded and has a certain angle with the attaching portion.
Specifically, the thickness of the joint 3 between the bending portion 2 and the attaching portion 1 is smaller than the thickness of the bending portion 2 or the attaching portion 1, so as to form the step 3.
The thickness is the thickness of the embedded steel sheet; here through increasing the breach at the junction 3 of bending portion 1 and laminating portion 2 to when moulding plastics, the combination of colloid and steel sheet changes step surface contact from the surface contact, increases the bonding area, reaches the casing gas tightness requirement more easily.
In an alternative embodiment, the bending portion 1 includes a first bending portion 11 and a second bending portion 12, and the first bending portion 11 and the second bending portion 12 are respectively disposed at two ends of the attaching portion 2.
Wherein the bending direction of the first bending part 11 is the same as that of the second bending part 12; or the first bending portion 11 and the second bending portion 12 are bent in opposite directions.
In this embodiment, two ends of the embedded steel sheet are respectively provided with a first bending part 11 and a second bending part 12; the bending direction of the bending part 1 is changed according to the different positions of the embedded steel sheet shell.
In an alternative embodiment, the step 4 is a right angle groove structure.
In this embodiment, a groove is formed on two sides of the joint 3 between the bending portion 1 and the attaching portion 2, and the groove structures on two sides of the joint 3 enable the thickness of the joint between the bending portion 1 and the attaching portion 2 to be smaller than that of the bending portion 1 or the attaching portion 2, so that a step 4 is formed, and the groove is a right-angle groove.
It should be noted that the structure of the step is not limited herein, and only the thickness difference formed at the connection portion is required to be the step.
Specifically, the attaching portion 2 and the bending portion 1 are integrally formed.
The bonding portion 2 and the bending portion 1 are integrally formed, and the bonding portion and the bending portion are distinguished here for convenience in describing the structure of the present utility model.
Referring to fig. 3 to 5, a second embodiment of the present utility model is as follows:
a loudspeaker comprising a gel 5 and an embedded steel sheet 6 according to embodiment one; the joint part of the embedded steel sheet 6 wrapped with the colloid 5 is provided with a step 4.
In this embodiment, the colloid 5 is plastic;
specifically, the speaker includes an outer wall 71, a housing 72, and a front chamber 74; the outer baffle wall 71 is disposed around the housing 72, and the front chamber 74 is disposed in the housing 72; the embedded steel sheet 6 is attached to one side of the housing 72. The front cavity 74 comprises a front cavity sound emitting pipeline 75 and a single retaining wall 73; the front cavity sound outlet pipe 75 is arranged at the edge of the shell 72; the single retaining wall 73 cooperates with the housing 72 to form the front cavity 74.
In summary, according to the embedded steel sheet and the speaker provided by the utility model, the step is increased at the joint of the bending part and the attaching part of the embedded steel sheet, so that the space at the joint is increased; during injection molding, the filling space of the plastic at the joint can be increased, the requirements on production factors such as equipment, steel sheet materials, mold materials, runner design and the like during injection molding are reduced, the joint area of the colloid and the steel sheet is increased, the appearance of the joint is beautified, and the requirement on the air tightness of the shell is met more easily; the half shears are added at the bending positions of the steel sheets, so that the combination of the plastic and the steel sheets is changed from surface contact to step surface contact, and the poor acoustic performance caused by air leakage of the loudspeaker is improved.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (8)
1. The embedded steel sheet is characterized by comprising a bending part and a fitting part; the bending part is connected with the end part of the attaching part; the junction of bending portion with laminating portion is provided with the level difference.
2. The embedded steel sheet of claim 1, wherein the thickness of the junction between the bending portion and the attaching portion is smaller than the thickness of the bending portion or the attaching portion, so as to form the step.
3. The embedded steel sheet of claim 1, wherein the bending portion comprises a first bending portion and a second bending portion, and the first bending portion and the second bending portion are respectively disposed at two ends of the attaching portion.
4. An embedded steel sheet as claimed in claim 1, wherein said step is a right angle groove structure.
5. A sheet of embedded steel as claimed in claim 3, wherein the first bend and the second bend are in the same direction.
6. A sheet of embedded steel as claimed in claim 3, wherein the first bend is opposite to the second bend.
7. The embedded steel sheet of claim 1, wherein the attaching portion and the bending portion are integrally formed.
8. A loudspeaker comprising a gel and an embedded steel sheet according to any one of claims 1 to 7; the joint part of the embedded steel sheet wrapped with the colloid is provided with a step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223314998.1U CN219145599U (en) | 2022-12-09 | 2022-12-09 | Embedded steel sheet and speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223314998.1U CN219145599U (en) | 2022-12-09 | 2022-12-09 | Embedded steel sheet and speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219145599U true CN219145599U (en) | 2023-06-06 |
Family
ID=86592011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223314998.1U Active CN219145599U (en) | 2022-12-09 | 2022-12-09 | Embedded steel sheet and speaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219145599U (en) |
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2022
- 2022-12-09 CN CN202223314998.1U patent/CN219145599U/en active Active
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